メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.366077124535 43.0239615781754, 141.367232063125 43.0246192899297, 141.367732707006 43.0250221357849, 141.367764800179 43.0251842133032, 141.366456322783 43.0251390274282, 141.366284408045 43.0251352383411, 141.365600010692 43.025120247743, 141.365367947335 43.0251130398294, 141.364745481745 43.0250974667023, 141.364675466784 43.0241592074362, 141.364645178444 43.0238720943822, 141.364609458724 43.0232825179434, 141.36464812733 43.0231529863935, 141.365702792113 43.0237355988798, 141.366077124535 43.0239615781754)) ^^http://www.opengis.net/ont/geosparql#wktLiteral